[HOFAN]

I finally got my pancake motor running. After putting the gearbox together and adding grease it will run and turn the wheels for a few seconds then the motor keeps running but the wheels don't turn. I opened up the gearbox and it appears the intermediate gears are moving on the axle and disengaging from the other gears.

Is there any way to "glue" or affix the gears so they won't move on their axle's? My next step if I can't fix the gear slippage is to either buy a new motor or find a new locomotive.

 

[Tom_C]

I suppose it might be possible with epoxy type glue, but I know for sure you'll need to get the shaft out, remove the gear and soak it all in something to get all the oil/grease off of it.

 

[HOFAN]

Gears moving on axle

Hi Tom---I'm forgetting about it. I just picked up a brand new Southern Railway GP-9 off ebay for $25. I will just put this one back together and use it as a "dummy loco on a siding or parking rail.

 

[Eilif]

Hi Tom---I'm forgetting about it. I just picked up a brand new Southern Railway GP-9 off ebay for $25. I will just put this one back together and use it as a "dummy loco on a siding or parking rail.

I wouldn't give up on it yet. Pop the wheel and gear off, soak it in alcohol (or just swab it all over), then slide the gear and wheel back on and apply a bit of water-thin superglue to the join.

Might even be worth putting a drop-of superglue on as it stands now. Probably won't hold if there's lube in there, but if it's not greasy between the gear and shaft, then the water-thin superglue will probably wick in there and hold it in place.

If you're sure you're going to use it as a dummy, detach the wires from the motor and leave the small gears/shafts out when you reassemble it. That way the motor won't spin but the loco it will still roll free and you can run it in line with your GP9.


I like the look of mixed loco lashups.
FRVR 815 by Mike Oaks, on Flickr

Soo Line GP9 and GP30 passes through Killagan Valley by Northern Ireland Railfan, on Flickr

 

[HOFAN]

Gears moving on axle

Eilif, thanks for the suggestions. I have already done it! Keeping the little gears as "spares" in the parts bin. Now all I have to do is fix the motor in the Rock Island Line loco and I will have four engines running. I haven't taken the drive box apart yet but the motor runs quite well but no wheels turn. Pretty sure there is a stripped gear in there. It is a tyco. I have attached a photo.